Results 111 to 120 of about 59,556 (258)

Pure Chitosan Microfluidic Spinning Affords Modular Core‐Sheath Fibers and Hand‐Crafted Scaffolds with Enhanced Fibroblast Compatibility

open access: yesSmall, EarlyView.
Microfluidic Wet Spinning affords highly resilient and biocompatible microfibers of pure chitosan without the use of any crosslinker. We produced microfibers both sheath and core of made of chitosan and another version with a chitosan sheath and chitin nanocrystals in the core.
Ishneet Kaur   +6 more
wiley   +1 more source

Optimization and Practice of Velocity String Drainage Gas Recovery Technology for Deep Carbonate Gas Reservoir

open access: yesShiyou jixie
A HTHP high-sulfur carbonate gas field with edge/bottom water in Central Asia is challenged by operating conditions such as liquid accumulation in wellbore, frequent pipe-diameter varying in production string, high wellhead pressure, high temperature ...
Chai Hui   +8 more
doaj  

Controlled Formation of Carbon Nanotubes and Nanotube Junctions from Bilayer Graphene

open access: yesSmall, EarlyView.
Twisted bilayer graphene is cut using a scanning transmission electron microscope to create individual chiral carbon nanotubes and interconnected nanotube junctions. The sculpting is facilitated by in situ heating and automated beam control. Bilayer graphene ribbons with a width of less than approximately 4 nm spontaneously convert to CNTs, while no ...
Michael Schlegel   +3 more
wiley   +1 more source

Systemic Causes of In-Hospital Intravenous Medication Errors: A Systematic Review. [PDF]

open access: yesJ Patient Saf, 2021
Kuitunen S   +3 more
europepmc   +1 more source

Development of large diameter T-111 /Ta-8W-2Hf/ tubing Final report [PDF]

open access: yes
Large diameter T-111 tubing processed from seamless and welded tube ...
Buckman, R. W., Jr., Stoner, D. R.
core   +1 more source

Англійська мова для навчання і работи. Навчальний посібник з англійської мови за професійним спрямуванням для студентів і фахівців галузі знань 0503 Розробка корисних копалин Т 1 [PDF]

open access: yes, 2010
A coursebook includes all the activities of students’ work at ESP course aimed at development of language behaviour necessary for effective communication of students in their study and specialism areas.
Зуєнок, І.І.   +3 more
core  

An improved phylogeny and revised taxonomy of Catillariaceae (Lecanoromycetes, Ascomycota)

open access: yesTAXON, EarlyView.
Abstract The boundaries of the family Catillariaceae have largely remained untested through phylogenetic methods. Recent studies have led to the transfer of several genera previously classified in Catillariaceae to the newly described family Leprocaulaceae. Despite these changes, the distinction between Catillariaceae, Leprocaulaceae, and Catinariaceae
Måns Svensson   +2 more
wiley   +1 more source

A cold ejector for closed-cycle helium refrigerators [PDF]

open access: yes
The test results are presented of an initial cold helium ejector design that can be installed on a closed cycle refrigerator to provide refrigeration at temperatures below 4.2 K.
Daggett, D. L., Johnson, D. L.
core   +1 more source

Robotic‐Assisted Transaxillary Parathyroidectomy: A Safe and Cosmetically Alternative for Primary Hyperparathyroidism

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Purpose This study aimed to describe the initial experience with robot‐assisted transaxillary parathyroidectomy (RATP) and to investigate its safety and efficacy as a surgical approach for the treatment of primary hyperparathyroidism (PHPT).
Xi‐Jun Lin   +7 more
wiley   +1 more source

A chlorate candle/lithium hydroxide personal breathing apparatus [PDF]

open access: yes
A portable coal mine rescue and survival equipment is reported that consists of a chlorate candle with a lithium hydroxide carbon-dioxide absorbent for oxygen generation, a breathing bag and tubing to conduct breathing to and from the man. A plastic hood
Martin, F. E.
core   +1 more source

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